SE9103408D0 - PRESSURE DIFFERENCE INDICATOR - Google Patents

PRESSURE DIFFERENCE INDICATOR

Info

Publication number
SE9103408D0
SE9103408D0 SE9103408A SE9103408A SE9103408D0 SE 9103408 D0 SE9103408 D0 SE 9103408D0 SE 9103408 A SE9103408 A SE 9103408A SE 9103408 A SE9103408 A SE 9103408A SE 9103408 D0 SE9103408 D0 SE 9103408D0
Authority
SE
Sweden
Prior art keywords
bellows
shaft
pressure difference
indicator
difference indicator
Prior art date
Application number
SE9103408A
Other languages
Swedish (sv)
Other versions
SE9103408L (en
Inventor
K Vonk
Original Assignee
Philips Nv
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Philips Nv filed Critical Philips Nv
Publication of SE9103408D0 publication Critical patent/SE9103408D0/en
Publication of SE9103408L publication Critical patent/SE9103408L/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2857—User input or output elements for control, e.g. buttons, switches or displays
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2805—Parameters or conditions being sensed
    • A47L9/2821—Pressure, vacuum level or airflow
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L13/00—Devices or apparatus for measuring differences of two or more fluid pressure values
    • G01L13/02—Devices or apparatus for measuring differences of two or more fluid pressure values using elastically-deformable members or pistons as sensing elements
    • G01L13/023—Devices or apparatus for measuring differences of two or more fluid pressure values using elastically-deformable members or pistons as sensing elements using bellows
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
    • G01L19/08—Means for indicating or recording, e.g. for remote indication
    • G01L19/10—Means for indicating or recording, e.g. for remote indication mechanical

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Fluid Pressure (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)

Abstract

A pressure difference indicator (10) for use in an appliance, for example a vacuum cleaner, comprises a shaft (14) and a bellows (16) provided around the shaft, in which a first end (17) of the bellows is fixed to the shaft and the second end (19) is slidable relative to the shaft. An indicator arm (21, 22) is provided for indicating the pressure difference between the spaces inside and outside of the bellows (16), which indicator arm is movable under the influence of the bellows. The shaft (14) is fixedly connected to a frame (15) of the appliance and the indicator arm (21) is connected to the second end (19) of the bellows. In one embodiment a biassing helical spring (23) is provided inside the bellows. <IMAGE>
SE9103408A 1990-11-22 1991-11-18 PRESSURE DIFFERENCE INDICATOR SE9103408L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL9002541A NL9002541A (en) 1990-11-22 1990-11-22 PRESSURE DIFFERENCE INDICATOR.

Publications (2)

Publication Number Publication Date
SE9103408D0 true SE9103408D0 (en) 1991-11-18
SE9103408L SE9103408L (en) 1992-05-23

Family

ID=19858013

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9103408A SE9103408L (en) 1990-11-22 1991-11-18 PRESSURE DIFFERENCE INDICATOR

Country Status (6)

Country Link
JP (1) JPH0744000U (en)
DE (1) DE9113858U1 (en)
FR (1) FR2669733B3 (en)
GB (1) GB2250596A (en)
NL (1) NL9002541A (en)
SE (1) SE9103408L (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4237150A1 (en) * 1992-11-04 1994-05-05 Licentia Gmbh vacuum cleaner
DE4244141C2 (en) * 1992-12-24 1996-06-13 Aeg Hausgeraete Gmbh Pressure indicator for vacuum cleaners
DE9404125U1 (en) * 1994-03-11 1994-05-26 Hofer, Egbert Otto Dietrich, 87719 Mindelheim Shaver with a suction device
DE4413225A1 (en) * 1994-04-15 1995-10-19 Vorwerk Co Interholding Vacuum cleaner with a suction power indicator
AUPS255902A0 (en) 2002-05-24 2002-06-13 Ultimate Medical Pty. Ltd. Device and method for pressure indication
DE202005012922U1 (en) * 2005-08-16 2006-01-19 BSH Bosch und Siemens Hausgeräte GmbH Fault indicator for vacuum cleaner
EP2193738A1 (en) 2008-12-04 2010-06-09 Koninklijke Philips Electronics N.V. Vacuum cleaner having a power indicator for determining a threshold value of the suction power
EP2884151A1 (en) * 2013-12-10 2015-06-17 Linde Aktiengesellschaft Device for indicating the loss of a vacuum

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB671956A (en) * 1949-07-19 1952-05-14 Pyrene Co Ltd Improvements relating to pressure indicators for fire extinguishers
DE3142746A1 (en) * 1981-10-28 1983-05-05 Siemens AG, 1000 Berlin und 8000 München GAS DENSITY INDICATOR

Also Published As

Publication number Publication date
GB9124479D0 (en) 1992-01-08
NL9002541A (en) 1992-06-16
FR2669733A3 (en) 1992-05-29
DE9113858U1 (en) 1992-02-13
FR2669733B3 (en) 1992-09-25
JPH0744000U (en) 1995-10-24
GB2250596A (en) 1992-06-10
SE9103408L (en) 1992-05-23

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Legal Events

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NAV Patent application has lapsed

Ref document number: 9103408-2

Effective date: 19931105